// JavaScript Document

	function timer(intDiff){
		window.setInterval(function(){
		var day=0,
			hour=0,
			minute=0,
			second=0;//时间默认值		
		if(intDiff > 0){
			day = Math.floor(intDiff / (60 * 60 * 24));
			hour = Math.floor(intDiff / (60 * 60)) - (day * 24);
			minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour * 60);
			second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);
		}
		if (minute <= 9) minute = '0' + minute;
		if (second <= 9) second = '0' + second;
		$('#day_show').html(day+"days");
		$('#hour_show').html('<s id="h"></s>'+hour+'h');
		$('#minute_show').html('<s></s>'+minute+'m');
		$('#second_show').html('<s></s>'+second+'s');
		intDiff--;
		}, 1000);
	} 

